Computerized three-dimensional demonstration method for special case type structures
A demonstration method, computer technology, applied in the direction of computing, special data processing applications, instruments, etc., to achieve the effect of saving production costs, implementing simplicity, and improving work efficiency
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[0021] The present invention will be further described below in conjunction with the drawings and specific embodiments:
[0022] Such as Figure 7 As shown, a computer three-dimensional demonstration method with a special box-shaped structure includes the following steps:
[0023] (1) First design the box-shaped two-dimensional planar topological structure in the packaging CAD professional software, such as figure 2 As shown, the solid line is the cutting line, and the dashed line is the folding line. Line segment MN is one of the fold lines, and its identification is Crease1. The folding angle of each folding line is actually the angle between the two planes adjacent to the folding line, so the following briefly introduces the calculation method of the angle between the two planes.
[0024] According to the spatial analytical geometry theory, three points that are not on the same straight line determine a plane, and the angle between the normal vectors of the two planes is the an...
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